Airstrike destroys hospital, Syria truce "hangs by a thread"
Last pediatrician in rebel-held area, several kids among dozens killed as violence spirals in front-line city
Aleppo
Syrian opposition stronghold a key to cease-fire's death
Air strikes and shelling kill dozens in Aleppo for third straight day; opposition says only Moscow can revive peace talks
Fierce fighting near Aleppo as Syria cease-fire starts to unravel
Government forces battling opposition fighter, including members of the al Qaeda-affiliated Nusra Front outside country's second largest city
War in Syria
Syrian civil war began in March 2011 and has raged for five years, causing untold destruction and more than 250,000 deaths
Aleppo residents "weary, desperate" after five years of war
CBS News' Elizabeth Palmer reports from cultural and industrial center of two million people still partly in the hands of rebels
For 4th day, shaky cease-fire calms Syrian skies
Sprawling Russian airbase comes to a virtual halt, no airstrikes heard in Damascus, but accusations fly over alleged truce violations
U.S. and Russia both deny bombing Syrian clinic
As civilian death toll mounts, Russians dismiss latest accusations and challenge the West to prove them liars
Russian strike reportedly flattens Syrian war clinic
U.N. says it got reports of airstrikes hitting five medical facilities and two schools, killing about 50 civilians, including kids
Syrians trapped between Russian bombers and closed Turkish border
CBS News correspondent Holly Williams reports from Syria-Turkey border, where tens of thousands of people are fleeing from civil war
Turkey fires back at U.N. as refugees languish at border
After call to open border to thousands displaced by Russian-backed offensive in Syria, defiant Turkish leader asks U.N., "What are you for then?"
U.N. demands Turkey opens to Syrians fleeing new slaughter
Tents on Syrian side of border are overcrowded with estimated 75,000 people escaping Russian-backed Syrian government offensive around Aleppo
NATO's challenges coming "quickly and with complexities"
U.S. defense chief heads for key meetings on future of trans-Atlantic alliance and how to fight ISIS, as NATO tries to "adapt itself"
As Syrian regime closes in on Aleppo, refugees have nowhere to go
Tens of thousands of civilians are fleeing from Aleppo to Turkey to escape a brutal offensive by the Assad regime, but Turkey says it has reached its limit
Under siege, Syrians try to reach safety in Turkey
As Russia steps up bombing in Syria, tens of thousands of refugees are fleeing Aleppo in hopes of finding a safe haven
Russian airstrikes allegedly hit schools full of Syrian kids
Opposition says bombs hit 3 schools in rebel-held countryside near Aleppo, killing at least 35 children and wounding many more
Syrian refugees thankful in Kentucky
New pilgrims in the U.S. adjusting to a new life in U.S., despite a backlash against Syrian migrants
Iran loses top commander helping Assad in Syria
Senior commander of elite Quds Force killed on battlefield as France blasts Russia for avoiding ISIS with most airstrikes
Syria war prompts withdrawal from "doomsday" vault
As war closed in researchers working on better crops for dry dirt sought safety for their seeds, now they need them back
Germany a welcome new reality, for those who make it
As thousands of migrants square off in Hungary with troops trying to block their path, a young Syrian explains why the struggle was worth it
3 Spanish reporters missing near major Syrian city
The three men were working in the Aleppo area after entering Syria through Turkey, a Spanish journalists' group said
Amnesty: Assad's barrel bombs have killed 11,000
Human rights group says gov't and rebels have committed abuses, but regime has brought "sheer terror and unbearable suffering"
"We are losing our future": The human cost of Syria's civil war
One of the few doctors left in Aleppo describes the frantic effort to save people injured in airstrikes, more than half of them children
Massive blast hits Syrian intelligence facility
Large explosion strikes intelligence building in northern city of Aleppo, setting off heavy clashes
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